Scripting API

ILocalesProvider

interface in UnityEngine.Localization.Settings · Unity.Localization

Not in Unity's public API, or in an assembly the coverage doesn't count.
In Tassix

The locales the project has.

Properties 1

List<Locale> Locales { get; }

Methods 3

void AddLocale(Locale locale)
Locale? GetLocale(LocaleIdentifier id)
bool RemoveLocale(Locale locale)